TITLE: Senior Network Engineer, AI Data Center InfrastructureLOCATION: McLean, VACLEARANCE REQUIRED: Active TS/SCI with CI PolygraphEMPLOYMENT TYPE: Full-time, OnsiteTRAVEL: Up to 20% (Domestic and International) POSITION SUMMARYModern Government Solutions (MGS) is seeking a Senior Network Engineer to drive the performance, stability, and scalability of next-generation data center networks supporting Artificial Intelligence (AI) workloads. Working with enterprise-leading equipment and emerging technologies, you will play a critical role in designing and implementing robust, efficient network infrastructure. You will join a diverse team of software and platform engineers to design, deploy, and maintain network infrastructure, collaborating with partners inside and outside the organization to deliver the highest standards for building and scaling networks, supported by ongoing training and professional development. RESPONSIBILITIES (not limited to):Design, configure, troubleshoot, and maintain complex Layer 2 and Layer 3 data center architectures using Border Gateway Protocol (BGP), Equal Cost Multipath (ECMP), Virtual Extensible LAN (VXLAN), Multi-Chassis Link Aggregation Group (MCLAG), Spine-Leaf topologies, RDMA over Converged Ethernet (RoCEv2), and related technologiesCollaborate with cross-functional teams to translate business requirements into effective network solutionsMentor and guide junior team members in their professional growthDocument network infrastructure designs and configurations for knowledge sharing REQUIRED SKILLS AND QUALIFICATIONSMust possess an active DoD TS/SCI with CI Polygraph security clearance.Current Information Assurance Management (IAM) Level II certification to satisfy DoD 8570 Information Assurance Technical (IAT) requirementsProven experience designing, configuring, managing, and troubleshooting complex BGP, VXLAN, and Layer 2 and Layer 3 data center architectures and topologiesExperience with Spine-Leaf data center fabric architecture, design, and implementation, and with redundancy protocols such as MCLAG or Link Aggregation Control Protocol (LACP)Ability and willingness to build expertise in troubleshooting, designing, and monitoring RoCEv2 supporting ultra high-speed data transfersStrong communication, cross-functional collaboration, problem-solving, and attention to detail, with a commitment to quality workCommitment to staying current on networking trends, best practices, and technology advancementsAbility to travel up to 20%, domestic and international, to perform on-site installations, maintenance, and troubleshooting at customer sites or data centers PREFERRED SKILLS AND QUALIFICATIONSExperience with Linux-based Network Operating Systems (NOS) *Applicants selected will be United States citizens and may be subject to a government security investigation for access to classified information.* ABOUT USAt MGS, we believe a people-first culture corresponds to organizational success through a commitment to excellence, integrity, inclusion, and an attitude that welcomes challenges meets demands, sustains growth, and drives innovation. We provide expert mission-first technical and programmatic services and solutions for the US intelligence community, the US Department of Defense, and other governmental agencies. We create people-first organizational cultures where employees feel needed in the system, not a system that needs employees. We provide you with long-term career opportunities centrally focused on our core value system: inclusion, integrity, and a commitment to excellence. MGS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status, and will not be discriminated against on the basis of disability.